This is hjarta.io, a collection of links and thoughts curated by Mikka Luster, just some dude.

The frontpage is ephemeral, which means it'll show the last 20-ish thoughts, and then vanish. There is no
going back in time, here. You can find older posts by their PID, if you have a link from somewhere, or browse by tag below.

Using high-resolution structural MRI, we measured subcortical gray and white matter brain volumes in a cohort (N = 143) of 1-month infants and examined characteristics of these volumetric measures throughout this early period of neurodevelopment. We show that brain volumes undergo age-related changes during the first month of life, with the corresponding patterns of regional asymmetry and sexual dimorphism.

The present study aimed to investigate Facebook Addiction Disorder (FAD) in a German student sample over a period of one year. While mean FAD level did not increase during the investigation period, a significant increase was shown in the number of participants reaching the critical cutoff score. FAD was significantly positively related to the personality trait narcissism and to negative mental health variables (depression, anxiety, and stress symptoms). Furthermore, FAD fully mediated the significant positive relationship between narcissism and stress symptoms, which demonstrates that narcissistic people can be specifically at risk to develop FAD. Present results give a first overview of FAD in Germany. Practical applications for future studies and limitations of present results are discussed.

TIL: Jordan Peterson‘s bestselling book is based on a Quora Answer -
Jordan Peterson is a little bit of a controversial figure as of late, largely because he reminds people of the fact that not everyone in academia is part of the regressive or brain washed left. He‘s a Christian, which makes him doubly suspect, a man, and he refuses to argue feelings and beliefs and instead talks about science, research, and knowledge.

I‘ve had my qualms with his theories in some areas, but I can‘t deny that he‘s never just thrown out stats or claims and always backs them with research, his own or peer reviewed studies.

Having heard the “soul-stirring” appeals for blood donors on her radio, she was determined to do her part. But when she arrived at the center, the supervisor turned her away. “Orders from the National Offices,” he explained, “barred Negro blood donors at this time.”

“Shocked” and “grieved,” Tucker left in tears, later penning a letter of protest about the whole ordeal to first lady Eleanor Roosevelt.

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